The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
May. 30, 2003
Toshiaki Ueda, Chiyoda-ku, JP;
Takeshi Sakai, Chiyoda-ku, JP;
Susumu Terumoto, Chiyoda-ku, JP;
Toshinori Watanabe, Chiyoda-ku, JP;
Toshiaki Ueda, Chiyoda-ku, JP;
Takeshi Sakai, Chiyoda-ku, JP;
Susumu Terumoto, Chiyoda-ku, JP;
Toshinori Watanabe, Chiyoda-ku, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In the stator of a electric rotary machine in which heat conductive insulation resin is filled at the end portions of a stator coil, the material of a stator core, the stator coil, the heat conductive insulation resin and a frame is selected such that a linear thermal expansion coefficient αof the stator core, a linear thermal expansion coefficient αof the stator coil, a linear thermal expansion coefficient αof the heat conductive insulation resin being filled and a linear thermal expansion coefficient αof the frame satisfy a relation that α. A cooling medium path is integrally formed within the frame made from aluminum through die casting molding.